/Engine/Source/Developer/MeshMergeUtilities/Public/IMeshMergeUtilities.h
Merges list of actors into single proxy mesh
void CreateProxyMesh ( const [TArray](API\Runtime\Core\Containers\TArray)< [AActor](API\Runtime\Engine\GameFramework\AActor) * > & InActors, const struct [FMeshProxySettings](API\Runtime\Engine\Engine\FMeshProxySettings) & InMeshProxySettings, [UPackage](API\Runtime\CoreUObject\UObject\UPackage) * InOuter, const [FString](API\Runtime\Core\Containers\FString) & InProxyBasePackageName, const [FGuid](API\Runtime\Core\Misc\FGuid) InGuid, const [FCreateProxyDelegate](API\Developer\MeshReductionInterface\FCreateProxyDelegate) & InProxyCreatedDelegate, const bool bAllowAsync, const float ScreenSize ) const